/* yongjoon.net - Luxury Personal Hub */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --deep-navy: #0A0C18;
    --navy-dark: #101428;
    --metallic-silver: #C0C8D8;
    --metallic-gold: #D0B880;
    --navy-mid: #283048;
    --noise-color: rgba(232, 224, 240, 0.03);
    --vintage-patina: rgba(96, 112, 72, 0.15);
    --text-light: #E8E0F0;
    --text-body: #B0A8C0;
    --text-data: #8898B8;
    --patina-green: #607048;
}

body {
    background: var(--deep-navy);
    color: var(--text-light);
    font-family: 'Newsreader', serif;
    font-size: 1.1rem;
    line-height: 1.8;
    font-weight: 400;
    font-variation-settings: 'opsz' 14;
    overflow-x: hidden;
}

/* Noise */
.noise-filter { position: absolute; width: 0; height: 0; }
.noise-overlay {
    position: fixed;
    inset: 0;
    filter: url(#noise);
    opacity: 0.03;
    pointer-events: none;
    z-index: 100;
}

/* Hero */
.hero-section {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--navy-dark);
}
.metallic-line {
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--metallic-silver), var(--metallic-gold), var(--metallic-silver));
    margin-bottom: 2rem;
    animation: lineExpand 0.6s ease forwards 0.3s;
}
@keyframes lineExpand { to { width: 60%; } }
.hero-title {
    font-family: 'Newsreader', serif;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 300;
    color: var(--text-light);
    font-variation-settings: 'opsz' 14;
    animation: opszZoom 1.2s ease forwards 0.8s;
}
@keyframes opszZoom {
    to { font-variation-settings: 'opsz' 72; }
}
.hero-tag {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.2rem;
    color: var(--metallic-silver);
    letter-spacing: 0.04em;
    margin-top: 0.5rem;
}

/* Content Column */
.content-col {
    max-width: 720px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Content Blocks */
.content-block {
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.content-block.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Metallic Rule */
.metallic-rule {
    border: none;
    height: 2px;
    background: linear-gradient(90deg, var(--metallic-silver), var(--metallic-gold), var(--metallic-silver));
    margin-bottom: 2rem;
    opacity: 0.6;
}

/* Section Typography */
.section-title {
    font-family: 'Newsreader', serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 300;
    color: var(--text-light);
    font-variation-settings: 'opsz' 72;
    margin-bottom: 1rem;
}
.section-body {
    font-family: 'Newsreader', serif;
    font-size: 1.1rem;
    color: var(--text-body);
    line-height: 1.8;
    font-variation-settings: 'opsz' 14;
    margin-bottom: 0.75rem;
}
.section-data {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    color: var(--text-data);
    letter-spacing: 0.04em;
    display: block;
}

/* Metallic border shimmer on hover */
.content-block {
    padding: 24px;
    border: 1px solid transparent;
    border-image: linear-gradient(135deg, var(--metallic-silver), var(--metallic-gold), var(--metallic-silver)) 1;
    border-image-slice: 1;
    background-clip: padding-box;
    position: relative;
}
.content-block::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, var(--vintage-patina), transparent);
    pointer-events: none;
}

/* Footer */
.site-footer {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 2rem 3rem;
    text-align: center;
}
.footer-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    color: var(--text-data);
    letter-spacing: 0.04em;
}

@media (max-width: 768px) {
    .hero-section { min-height: 80vh; }
    .content-col { padding: 3rem 1.5rem; }
}